Centering chuck for web rolls



June 7,1932. 1. 1. STONE 1,861,646

CENTERING CHUCK FOR WEB ROLLS Filed Dec. 22. 1927 172M672??? u%/w a J/m'Patented June 7, 1932 UNITED STATES IRVING I. STONE, OF CHICAGO,ILLINOIS cnnrnnrne CHUCK ron WEB noLLs Application filed December 22,1927.

This invention relates to a device for supporting and centering the endof a web roll in position to feed the web to a newspaper printing press.

More particularly, this invention relates to means for supporting eachend of the web roll from a pair of centers mounted in a firm manner, onecenter having longitudinal movement whereby the exhausted web rolls canbe removed expeditiously and the mounting of the fresh roll can becorrespondingly facilitated.

This invention also involves ameans for permitting the axis of the webroll to rotate off-center with respect to the axis of the supportingcenters whereby the web will, not be torn should the web roll bedefectively wound or should the web be irregularly fed in any manner.This invention further relates to a means for reducing or increasingfriction as desired. Then the web roll sup ply apparatus is inoperation, that is, in the act of feeding the web to a newspaperprinting press, it is desirable that an amount of friction be employedto retard the rotation of the web roll as it is being exhausted. Verethe web supply roll run too freely, it would have a tendency to rotatefaster than the paper is being consumed due, of course, toirregularities in the feed of the web, and the paper would pile upon thefloor thereby causing confusion, delay and waste. Again, too muchfriction would tend to tear the web, which of course would cause as muchtrouble as in the previously recited instance. Further, when the webroll is being positioned in the supply apparatus, it is necessary, for

divers reasons, as for example, in applying.

the pasters ordinarily used in attaching the web from an exhausted webroll to a new web roll, to rot-ate the roll by hand, and therefore, verylittle friction is desired.

Other objects and advantages will beapparent from the description andaccompanying drawing forming a part of this specification to whichreference may now be had for a more complete understanding of thecharacteristic features of this invention, in which drawing: V

Figure 1 is a side elevational view of an zontally therethrough.

Serial No. 241,783.

apparatus for supporting a plurality of web rolls and embodying theprinciples of this invention; and c Figure 2 is an enlarged detailedcentral sectional view of a portion of a web roll and its relation tothe supporting and centering means of this invention.

Referring now more particularly to the drawing, the supply apparatus forsupporting the web rolls comprises a pair of supports 10 having ahorizontally disposed shaft 11 supported therebetween and journalledtherein. The shaft 11 is provided with a hand Wheel 12 for manuallyrotating the shaft 11, the latter having suitable gearing or chainsconnected thereto and to a motor or other driving means when it isdesired to have the shaft 11 rotate automatically. A pair of reels 13and 14 are mounted on the shaft 11 and are rotatable therewith.

A plurality of web rolls 13a are mounted between the reels 13 and 1 1,the particular embodiment shown in the drawing containing three such webrolls. In this instance, the reels are each provided with three spiderarms having suitable strengthening webs. Suitable bearings 15 are formedin each arm of the reels for receiving mechanism for supporting each ofthe web rolls.

A spindle 16 is journalled in each of the bearings 15 of the reel 13 andextends hori- The spindle has a rack 17 on one side thereof which issuitably cut or formed to mesh with a pinion 18. The latter mentionedpinion is mounted in an opening in the bearing 15 and is fixedly mountedon a shaft 19 journaled in the bearing 15. A hand wheel 20 is fixedlymounted on the reduced end portion of the shaft 19 to rotate the pinion18.

One end of the spindle 16 is provided with an aperture 21 for receivinga shank portion 22 of a centering device having a conical centering head23. The shank portion 22 has a drive fit in the aperture 21 of thespindle l6 and is therefore held firmly against rotation. The shoulderformed atthe junction between the conical centering head 23 and theshank portion 22 is curved as at 24 to engage a socket 25 formed in acap member 26, the

periphery of the socket having preferably the same radii as the arc ofthe curved portion 24. A centering device similar to the above describeddevice is rigidly mounted in each of the bearings 15 on the reel 14coaxially with their cooperating supporting centers on the reel 13.

The web roll 13a comprises a web wound on a spool 27, the latter beingpreferably made of a heavy paper or cardboard. For the purpose ofsupporting the web rolls 13a, a chuck 28, comprising a solid'cylindricalshank, is inserted into the spool 27, the diameter of the shank snuglyengaging the inner diameter of t re spool and is preferably about 8 longfor use on an ordinary sized web roll. This dimension is, of course,merely for purposes of illustration and the shank portion may beextended or shortened at the will of the user. A similar chuck 29 isinserted in the spool 27 at the .opposite end thereof. A conical shapeddepress-ion 29a is formed in the outer end of the chuck 28 for engagingthe conical centering head 23. A flange is also provided each of thechucks and on the same end with the central depression for engaging theedge of the web roll to limit the extent to which the chuck will enterthe spool. I

The cap member 25 is internally threaded to engage external threadsformed on the shank 30 of the chuck 28. This cap may be tightened so asto form a snug engagement between the socket portion 25 thereof and theannular shoulder portion 2i of the shank portion 22 or it may beloosened to provide for any desired amount of clearance therebetween.The hand wheel 20 may be operated to rotate the pinion 18'for slidablymoving the spindle 16 in longitudinal direction thereby providing for arelatively great amount of friction between the conical centering head23 and its engaging depression 2901,. Again, this operation may beperformed in a reverse direction to obtain a minimum amount of frictionbetween the conical centeringhead 23:and its engaging depression'toaftorda minimum amountoffriction therebetween.

It :may so happen that because of ;a defective winding of the web 'onthe spool 27'th'at 'oneend-ofthe web may be drawn taut, while the otherend is loose, thereby tending to tear the paper because of an uneventension on the web. The conical-centeringhead 23 may, inthis'instance,be-loosened to a desired degree whereby the roller willdepend for-its support upon the engaging surfaces of the curved shoulder24 and the socket 25. In this manner, the center of the web roll willGXtBTIClOfl -CQIHEQZ relative to the central axes of .the spindles andthe .conical centering heads mounted therein. This, of course, willrelieve the hereinbefore --menti0ned tenstrain.

sion on the one side of the web roll and the web will be run off evenly.

In mounting a new web roll in position on the apparatus, the spindle 16is operated longitudinally in a direction away from its cooperatingcentering head on the reel 14 so as to permit of a sufiicient clearancefor the web roll to be moved bet-ween the centering heads mounted in thespindles. One end of the web roll is lifted and located so 'thattheconical center of one reel enters the conical depression in the chuckmember disposed in the spool 27 The other end of the web roll is thenraised into a substantially horizontal position whereafter the spindle16 and the centering device thereon is moved towards its cooperatingcentering device on the first mentioned reel so that the conicalcentering head of the last mentioned reel will engage the depression ofthe chuck mounted in the spool 27 of that end. Any desired amount oftension may be placed on these centering heads to either retard the movement of the web roll or to permit the free action thereof as previouslydescribed. The caps 26 are then secured into position so that a desiredamount of clearance may be obtained between the curved shoulder 24 andthe socket portion 25.

It is desirable to provide for lubricating the engaging portions of thisdevice because ofthe friction whichmaybe obtained therein.

Accentral aperture 31 is drilled or otherwise formed in the shankportion 22 and extends to :a ,point near the apex of the conicalcentering head. Thesurface of the conical centering head as providedwith a spiral groove 32 which is suitably connected to the aperture31 asby means of .the conduit 83. The spiral ,groove 32 may extend from the.apex of the conical centering head to .theextreme lower end thereof inorder to lubricate the socket :25. A lubricating medium is forced intothe .aperture .21 .of the spindle 16 where- .after it passes through theaperture .31 of the shank 22 to the spiral groove 32 and thence to theengaging surfaces.

.It may be desirable in some instances to provide for a free rotationbetween ithe spool 27 and thechuck'28. This isaccomplished by .means of.a collar 34: preferably formed of brass whichis dis osedon theouterneri'ihcry of thechuck .28 .and in snug engagement therewith.Ordinarily,itl1e.chuck.28.revolves about the conical centering head 23.However, shouldan excessive amount of friction obtain therebetweemthespool27 will rotate about the chuck 28. Again, if the chuck shouldihaveadrive vfit with the spool, asat times may occur,, the collar 34 mayrotate upon the chuck 28 in order to prevent the web .fromztearing. Itwillbeunderstood that the collar .34 does not ,freely turn on the chuck,but that it may turn under While but a single embodiment of thisinvention is herein shown and described, it is to be understood thatvarious modifications thereof may be apparent to one skilled in the artwithout departing from the spirit and scope of this invention, andtherefore, the same is to be limited only by the scope of the prior artand the appended claims.

I claim:

1. A device for rigidly supporting the end of a web roll for newspaperprinting presses comprising a shank member adapted to enter the spool ofsaid web roll and a supporting member, one of said members having acentral depression therein for receiving a pointed end portion of theother of said members, said pointed end portion having a sphericalportion, and means in engagement with said spherical portion forpermitting a substantially universal engagement with the other of saidmembers.

2. A device for rigidly supporting the end of a web roll for newspaperprinting presses comprising a shank member and a support ing member,said shank member being adapted to enter the spool of said web roll, oneof said members having a central depression therein for receiving apointed end portion of the other of said members, said pointed endportion having a spherical portion, and a cap secured to one of saidmembers and engaging said spherical portion for permitting asubstantially universal engagement with the other of said members.

3. A device for rigidly supporting the end of a web roll for newspaperprinting presses comprising a shank adapted to enter the spool of saidweb roll and having a depression on the outer end thereof, a supportingcenter for engaging said depression, and a cap sur rounding andsupporting said supporting center and secured to said shank.

4:. A device for rigidly supporting the end of a web roll for newspaperprinting presses comprising a shank adapted to enter the spool of saidweb roll and having a central depression in the outer end thereof, apointed supporting center for engaging said depression, said pointedsupporting center having a spherical portion, and means on said shankfor engagement with said spherical portion permitting a substantiallyuniversal engagement with said supporting center.

5. A device for rigidly supporting the end of a web roll for newspaperprinting presses comprising a shank adapted to enter the spool of saidweb roll and having a central conical depression in the outer endthereof, a conical supporting center for engaging said depression, saidsupporting center having a spherical portion, and an internally threadedcap member for engagement with external threads on said shank and havingengage- 7 ment with said spherical portion for permit- 7. A device forrigidly supporting the end 7 of a web roll for newspaper printingpresses comprising a chuck adapted to enter the spool of said web rolland having a flange for limiting the extent to which the chuck willextend therein, said chuck having a central conical depression in theouter end thereof, a centering device comprising a shank portion and aconical head having a curved shoulder at the junction therebetween, acap secured to said flange of said chuck having a socket portion, saidshoulder being adapted to seat against said socket portion.

8. A device for rigidly supporting the end of a web roll for newspaperprinting presses comprising a chuck adapted to enter the spool of saidweb roll and having a flange for limiting the extent to which the chuckwill extend therein, said chuck having a central conical depression inthe outer end thereof, a centering device comprising a shank portion anda conical head having a curved shoulder at the junction therebetween, acap secured to said flange of said chuck having a socket portion, saidshoulder being adapted to seat against said socket portion and a collarfin said chuck in snug engagement therewit In witness whereof, I havehereunto subscribed my name.

IRVING I. STONE.

